Yes, 'eaten' is correct.
The past tense of "eat" would be "ate". "Eaten" could be used as a past tense, too.
Eaten is the past participle of eat, not the past tense. Ate is the past tense.
The simple past tense is 'drank' whilst the past participle is 'drunk'.
Present tense.
The past perfect tense shows an action in the distant past eg. I had eaten cereal for breakfast yesterday. The present perfect tense shows an action in the recent past, eg. I have just eaten my lunch.
Since it is afternoon he has already eaten his lunch. (past tense). She will have eaten her lunch around noon time. (future tense).
No. Eat is present tense, ate is past tense, and eaten is the past participle.
What did the ancient Greeks use cereal for?Note: Past tense, 't' is quite far from 'd'
Ate is the past tense of the word eat. Its a past tense word
Eating is the present participle; eaten is the past participle.
Has eaten is present perfect.Present perfect is formed with have/has + past participle. Eaten is the past participle of eat.The boy has eaten his lunch -- singular subject - boyThey have eaten their lunches. -- plural subject - they
The present perfect tense of leave is have/has left. The present perfect tense of eat is have/has eaten.